不改变html结构,使导航菜单垂直水平居中,导航宽度自适应屏幕100%,高度30px;单项高度28px,宽80px;
兼容:ie6+,ff,chrome,opera等主流浏览器。
<style type="text/css"> *{margin:0; padding:0;} ul,li{list-style:none;} .clear{clear:both;} #nav{width:100%; white-space:nowrap; overflow:hidden; background:#ccc; position:relative; } #nav li{ float:left; position:relative; left:50%; } #nav .a1{margin-left:-240px;} #nav .a2{margin-left:-160px;} #nav .a3{margin-left:-80px;} #nav li a{ display:block; text-align:center; line-height:28px; background:#ccc; color:#000; width:80px; height:28px;} </style> <ul id="nav"> <li class="a1"><a href="#">home</a></li> <li class="a2"><a href="#">advice</a></li> <li class="a3"><a href="#">page</a></li> <li><a href="#">people</a></li> <li><a href="#">service</a></li> </ul>